The Centers for Disease Control and Prevention (CDC) recommends people six months and older to get a flu vaccine.

It takes about two weeks for the body's immune system to be in full force after you get vaccinated.

This year, they're predicting a fairly serious flu outbreak. And for those who have not had their flu shot and think they're going to slip through without having any problem with it, I don't know if I would necessarily suggest that," says Dr. Brian Whalin.

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